Special tool



y 1'6, 1946- 5. J., A. CHRISTIE 2404374 SPECIAL TOOL Filed March 31, 1944 ATTORNEYS Patented July '16, 1946 UNITED STATES PATENT OFFICE p f 2,404,274 g t, SPECIAL TOOL 1 v Stanley J. A. Christie, Oshawa, Ontario, Canada Application March '31, 1944, Serial No. 528,8zl

This invention relates to attachments, for machines employinga tiltable table top,. designed to release and secure the tilting means:

Up to the presenttimejcertain machines employing a tiltable table .top designed to tilt in two directions and'employing a nut and bolt combination fonlocking the-table against tilting after it has been. swung to. desired predetermined position,

It is therefore an objectthe present inven 2 Claims. (01. 143 132).

taken inconjunction with the accompaying draw ing.w:. v In the drawing: I Figure 1 is a fragmentary, view of the tiltabletable top of a machine illustrating the attachment according to, the present invention in mounted position and in engagement with the securing nut.

controlling'the setting of the table top in adjust-' tion to provide a special attachment, for machines employing a tilt top table, which may be employed to lock the table in its desired adjusted position regardless as to what angle it may be desired to swing and securethe table.

A further object of the invention is to provide an attachment'of this kind'which will always be positioned ready to hand-and therefore can be operated with facility.

A still further object of the provide an attachment of this kind which, will be maintained in position in engagement with the locking nut or which may be disengaged therefrom and employed as-a special tool for tighteningor loosening other nuts on the machine of a size corresponding to the socket of the attachment.

With these and other objects in view the invention generally comprises an attachment, for machines having a tiltable top, which employs a shank having a swin'gably mounted socket at one end and an operating member at the other projecting beyond-the table edge, a'holding bracket on the tiltable top normally holding said shank and means cooperating between the shank and the bracket'for retaining the socket in engagement with. the securing nut of the machine. The bracket is formed preferably so as to permit detachment of the shank from mounted position and also to permit ready mounting thereof, the shank, when mounted in a bracket, being swing-. able with the table as it is swung to various tilted positions desired. l I

The invention will be clearly understood by reference to the following detailed specification invention is to able'position; Figure 2 is an enlarged sectional fragmentary detail of part of Figure 1. a

Figure-3 is a fragmentary sectional view of Figure 1 taken substantially along the line 33;of Figure 1, and r I Figure 4 is a transverse section taken substan tially along the line 44 of Figurel. I Referring to the drawing:, up A indicates the tilting top of a machinewhich, for instancamay employ aband saw B passing through the table top A, the latter being tiltable in two directions by means of suitable pivots such as the. pivotal axis 10, indicatedin Figurev 1, and the pivotal'axis represented by the bolt H (illustrated most clearly in Figure 3). The pivoting or tilting movement of the'table in respect tothe bolt H is effected by the fitting C which employs the quadrant plate 12, carrying the pin or bolt H which projects from one surface thereof :and'is designed to pass through the arcuate-slot I 3,in the bifurcated mounting piece [3a (Figures 1' and 3). The swing adjustment of the tabletop A, in terms of the pivotal axis represented by bolt II, is effected by tightening or loosening as the case may be, the nut M on the'bolt ,Il so that the table top may be swung to a predetermined desired position when the nut I4 is loosened and retained in that position when the nut- M'is tightened.

Tilting of the table in the opposite direction about the pivotal axis I0 is accomplished by in-' cluding in the fitting C, the spaced, parallel, substantially arcuate arms l5 which in fact'carry the pivot pins H], the latter being pivotally mounted in the table in any suitable manner such,

5 for instance, as illustrated in Figure 3. Control of the adjustment of the-table top when swung about the pivot pins III is effected by meansv of a bolt or the like l6 projecting from the arms I5 and passing through arcuate slots l'l, formed in adjacent bracket plates I8.' By tightening or loosening the nut l 9 in each case, swinging of the tabletop A is permitted in this direction as well as its securement in .thedesiredposition. i

In the case of a machine such as the kind illustrated in the present'drawing, the band saw B up into the slot 28;

, passes through slots'ln the table (not shown) and 1 the table swings relatively to the band saw which latter may pass through a suitable guide 28 mounted on one side of the mounting piece l3a.

In order to control the tightening and. loosendle or the like 24, such as a ratchet handle. The shank 23 is of such length that it extends from.

the socket 2i to a point beyond the edge of the 1 tilting table topv A of the machine and thus; "accessible at the edge of this table To mount the shank 23 I provide a bracket??- ing of the securing nut M Which is a main con-' 3 trol nut, I provide a socket wrench 2| which by way of a universal joint action 22 is fastened to g the shank. 2.3., forming the body of. the tool. or. *attachmentwhichzfhas a suitable operating outer edge of the tableand readily accessible. I

There is no problem, therefore, presented when using such an attachment as is the case in such a situation where it is necessary by means of a wrench of any desired shape to get in under the tiltablo top to tighten the securing nut [4.

In addition to providing a most convenient means for loosening and tightening the securing nut M the manner in which theattachment is applied readily lends itself to further utility.

For instance, the attachment may readily be demounted from the bracket 25 by merely removwhich is preferably bifurcated-to; form the tWOE arms 25 and 21 (see Figure 4) formed'by the cenv 3 tral slot 23. A seeming member or pin 29i's' 'de-' 1 signedto traverse the slot 28 and is'moved to 1 and'i'romi'tsnormal securing-position, suchpas; I

by means of screw threading 30 and the operate 1 ing handle 3!. j portion 21' of the attachment'is. engaged orrthe i securing'nut I4'the attachment may bei-swungr' upon the universal joint so' that the shanki'passes' Thepin: 29 may then; be I 3 caused'totraverse the slot- ZB by'ScreWing-it into Thus when thessocke't wrench position and the shank 23 is therefore: fastened in the bracket 25';

In order to retain thesocket portion 2 l? ofi the attaehmentin operativerelati'onsliip to securing nutMI provide on the" shank 23 a coil spring 32. This at one end is designed to aibut'v a suitable stop member 33which may take the form of a collar, and at the other endthe coilspringrisrdea 1 signed to abut a suitable-shoe 34:- whi'chis' pref- Q erably formed; with a canrrlike-z surface 315. Thus when the socket porti'on': has-been engaged withv Y the securing nut. l' l'and' the shan'kis then'fswung "ing thepin 29 and swinging the shank 23 to the line position of Figure 2 whereupon it may bepulled away from the nut l4.

' of other nuts on the machine such as the nuts l9,

winch arerallf oi asize similar to the securing nut it the attachment may be used as a special nut tightening; or loosening tool.

From the foregoing it-is apparent that I have provided a: useful attachment for machines employing a1 tiltabletop Whereby i'si-facilitated the adjustment of such tabletops regardless of the manner in which'they may be tiltedi WhatI' claim as my invention is? I 1'; In a; machine employingra table' top mounted on its frame. totilt in all directions and including a screw securingmeans adjacent the tilting point for securing" said'top in adj'ustediposition, an adjusting member f or'looseningor tightening said securingjmeans including a" shank; a head pivotally'connected'to said shank iat: one end to r swing in all directions and engageable with said from the dotted line position showrr in. Figure 2 t the full line: position, slight pressureinwardly upon the coil spring 3z byway oi the shoe 34: will cause thew-shoe to engage the-inwardly directed: surface: of the: bracket: 25 which. thus: tends. to .exertza slight pressureiupon the: coilZsp-ring and: 1 therebyretains the'socket portion idirrpositive engagementywith: th ezsecuring: nut; 14:,"

With the attachment thus IIIOU'IItHdK it maneiiestly'clea-r that when the tablev is: tilted in. any 1 direction the operating member Z'fi for the shank. 23'Wi1l} always'be'readily accessible; In. thisacon nection it'shqul'd be noted that the upper end of the s1ot-28isdefined by theecurvedj' formation 36.- i which together with theamount of" clearance i permitted between the top v ofthe; shank; 237 and. the surface 36 permits all necessary relative 1 movement between the upper end of the: slot and. the shank when the table isitilted'. in a direction toward or away from: the shank;

As an: illustration. of the general utility of the.

In assuming this: position the belt 31 tain. said shankin said bracket; said: pin being: removable to detaclr said. shanln. and operatingsecuring means, the.-opp'osite.-ends :of said shank extending adjacent to one edge of said tabletop,

av bifurcated bracket mounted adjacent the edge of said tabletop having parallelarms' spaced;

apart. from 'oneanother, said shankbeing receivable between said arms and swingably movable therebetlwen, a detachable. pin member'traversing saidarms andsaid space; therebetween to re- I means connected with saidshank; said pin;'re1- tive engagement-.witlrsaid screvwsecuring means;

taining said operating; meansin accessible. position adjacent the edge; of. said tabletopuregardless. of: the angular? rxosiition oi th latterr.

2. The-combinationiwith aimachineaemploying a table top mounted on its-fiamefio' tilt in: all

directions. and including a: screw securing means adjacent. the tilting; point; for: securing: such top injadjustedposition; ofan. adjusting memloerior:- loosening; or tightening said; screw= securing means; including a. shank: andla head; the latter." being? connected to one; endqof the; shank by: a; universal: joint, saidzhead being: engageable with; said securing means, the opposite end of. said; shank extending; adjacent to: oneedge off saidt'able top; means for: detachably mounting": said.

shank in relatively movable. relation: trr saidt'able top and" swingable' therewith, including a; bi-

furcated, bracket carried onthe' tabletop de'-- signed to receive thershankz anddetachable; se-

curing means for retaining. said shank in mount ediposition, a,coil spring-,anchored on.said.shank,.

engageable with. said. mountingme-ans and come pressibleby th latter to retain; said: head-.in posi.--

and operating meanson saidshank in accessible position adjacent the; edge of said. table: top re gardless; of. the; angular locationioithe latter;

.S'IANLEY J. A...enmsTIE..

Thus in the case 

